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  <script>
    /* 
      - 使用function* 可以声明一个generator状态机对象,yield关键字用来定义一个个的状态
      - 调用generator函数后返回一个iterator对象,每次调用iterator对象上的next方法,可以执行一个yield后的状态
    */
   function* gene(){
    yield console.log(1);
    yield console.log(2);
    yield console.log(3);
    yield console.log(4);
    yield console.log(5);
   }
   const gen = gene()
   console.log(gen);
   gen.next()
    // function* generator() {
    //   yield console.log(1);
    //   yield console.log(2);
    //   yield console.log(3);
    //   yield console.log(4);
    //   yield console.log(5);
    // }

    // const gen = generator();
    // console.log(gen);
    // gen.next();
    // gen.next();
    // gen.next();
    // gen.next();
    // gen.next();
  </script>
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